Developing a maintenance and replacement cabling strategy for medium and low voltage overhead lines - A practical approach

The specific maintenance costs of medium and low voltage overhead lines with wood poles are up to ten times higher compared to cables. A way of estimating the costs for the replacement cabling and the maintenance as accurate as possible for the economic appraisal as well as the economic appraisal itself is shown in this paper. The cost estimation is automated based on the maintenance software tool and the geographic information system. Since improvements of the supply situation are achieved with replacement cabling they have to be evaluated and taken into account.